Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6fdb72d347b647d…

MALICIOUS

PDF

72.4 KB Created: 2021-03-06 19:18:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 36a77fe70c4bf502e2471bb790fcd07c SHA-1: 9ba242c54b37f662161341425e72b5fad6208177 SHA-256: c6fdb72d347b647def4fd5baab2e23cea7fe8c33644202b59575e3dc3ff5f7a5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://nipisod.ru/wix?keyword=fleck+5600+sxt+valve+manual PDF link annotation
    • https://cdn.sqhk.co/susiwebuvowo/kvTehhj/facebook_marketplace_maine_boats_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/banamasuvaj/uSijJjd/live_video_chat_with_strangers_app_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374860/normal_6027c8e566e6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447658/normal_60322457ac33e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417995/normal_5ffa418c02416.pdfIn PDF document text
    • https://cdn.sqhk.co/bupabumo/iehiicX/powoboledibud.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369653/normal_6035a04d7cc2a.pdfIn PDF document text
    • https://cdn.sqhk.co/raxoxawupej/i3zhdUW/liledatuzetoxatinakuvisa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452382/normal_6043082b78325.pdfIn PDF document text
    • http://lolafoduluj.22web.org/fadebujituti.pdfIn PDF document text
    • https://cdn.sqhk.co/jowapezo/RfBjhdp/42004896301.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vofiwevo.epizy.com/tefugubupipirud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf2f7c3d-86e5-43d3-a408-c5230f06ceca/hp_1320_driver_for_windows_10_64_bit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37ffd470-fb12-4abb-8e08-b38c616f7509/taylormade_r15_hybrid.pdfIn PDF document text
    • http://vuxijupobagaf.epizy.com/cartoon_yourself_app_for_pc.pdfIn PDF document text
    • https://ae0ecf71-49bb-4ac4-bba4-d0f2a20d1af9.filesusr.com/ugd/668a47_d38cbb1026eb422faa2ba7f796e8ec5c.pdf?index=trueIn PDF document text
    • https://af30af13-e0b7-4de0-aca7-7783c01eade2.filesusr.com/ugd/9757e7_d6f59de4c9c24a2c8aaab68f15b217d2.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a3898f1-7fb3-4c3d-b10f-164de9d25ba2/mol_to_calorie.pdfIn PDF document text
    • https://37523d11-79cf-4eb3-ada4-f05de57c71ee.filesusr.com/ugd/275374_122c9763ae754faeb2526e7283daf0ad.pdf?index=trueIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e05b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE05B 5416 bytes
SHA-256: 4fc3da8ac9d4ba4217ee659141750d4d7e20a02c08e523f7185dca95bc573393
font_01_sfnt_off0000f2cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2CB 9892 bytes
SHA-256: c72c86aef64fdb78f163e1ca82fb4b487417a006411c6b990345974d1e820fa1

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